For the last ten years or so I have watched the Ruby Throated hummingbirds come and go with great regularity. They travel some 2000 miles each way to migrate and to breed. These may actually be from the original family as they tend to return each year to familiar territory.They arrive in early May here in New Hampshire, and they leave before September 4th. and, once again, they are right on schedule. It is difficult to understand how these tiny, high energy birds fly for such long distance for the warmth and relief from our winters. I have planted honeysuckle and Salvia for them to draw fresh nectar, and use the feeder with the non-dyed clear sugar solution. But, they seem to forage normally and use the feeder as a supplement, and not as their only source of food. It is a real joy to see them arrive as it means warm weather, but when they leave, it reminds me that winter is not far behind. There is an interesting link here for more. Have a safe journey and we will see you next year...